Coccinelle: Cleanup the setting of the FLAGS and OPTIONS variables

The FLAGS variable is factorized independently of the ONLINE mode.
The OPTIONS variable is now based on LINUXINCLUDE and explicit
includes are thus removed.

The format of the -I option differs between gcc and spatch.
The COCCIINCLUDE is used to adapt the format. This rewritting
needs bash.

Signed-off-by: Nicolas Palix <nicolas.palix@imag.fr>
Signed-off-by: Michal Marek <mmarek@suse.cz>
diff --git a/scripts/coccicheck b/scripts/coccicheck
index 7f0d6a6..cdde8e0 100755
--- a/scripts/coccicheck
+++ b/scripts/coccicheck
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 SPATCH="`which ${SPATCH:=spatch}`"
 
@@ -11,24 +11,25 @@
 	VERBOSE=0
 fi
 
+FLAGS="-very_quiet"
+
+# spatch only allows include directories with the syntax "-I include"
+# while gcc also allows "-Iinclude" and "-include include"
+COCCIINCLUDE=${LINUXINCLUDE//-I/-I }
+COCCIINCLUDE=${COCCIINCLUDE//-include/-I}
+
 if [ "$C" = "1" -o "$C" = "2" ]; then
     ONLINE=1
 
-# This requires Coccinelle >= 0.2.3
-#    FLAGS="-ignore_unknown_options -very_quiet"
-#    OPTIONS=$*
-
-# Workaround for Coccinelle < 0.2.3
-	FLAGS="-I $srctree/include -very_quiet"
-	shift $(( $# - 1 ))
-	OPTIONS=$1
+    # Take only the last argument, which is the C file to test
+    shift $(( $# - 1 ))
+    OPTIONS="$COCCIINCLUDE $1"
 else
     ONLINE=0
-    FLAGS="-very_quiet"
     if [ "$KBUILD_EXTMOD" = "" ] ; then
-        OPTIONS="-dir $srctree"
+        OPTIONS="-dir $srctree $COCCIINCLUDE"
     else
-        OPTIONS="-dir $KBUILD_EXTMOD -patch $srctree -I $srctree/include -I $KBUILD_EXTMOD/include"
+        OPTIONS="-dir $KBUILD_EXTMOD -patch $srctree $COCCIINCLUDE"
     fi
 fi